Com (Serial) Ports - DFI EC70A-SU-394 User Manual

COM (Serial) Ports

COM 3: RS232
COM 3
SATA 2 SATA Power
1
1
DP or HDMI
LINE-out
Realtek ALC888
SATA 3.0
1
JP1
12
1 1 DDR4
JP2
12
1
Battery
JP3 1
SPI Flash
JP4 1
BIOS
1
COM 4 VGA
(JP1)
COM4/DIO Pin Select
COM4/DIO Pin Select (JP2)
Mini PCIe PCIe/ (JP3)
SATA Select
Clear CMOS (JP4)
COM 4 (or 8-bit DIO): RS232 COM 2: RS232/RS422/RS485
COM 1 and COM 2 can be selected among RS232/RS422/RS485 whereas COM 3 and COM 4
are fixed at RS232. Use the BIOS configuration utility to select the communication mode for
COM 1 and COM 2.
BIOS Setting
Configure the serial ports in the "Advanced" menu (Super I/O submenu) of the BIOS. Refer
to Chapter 7 for more information.
Chapter 2 Hardware Installation
Chapter 5 Ports and Connectors
LAN 2 LAN 1
USB 4 USB 2
USB 3 USB 1 DC-in
MIC-in
USB 3.0
USB 3.0
Intel
WGI210AT
DDR4 DDR4 DDR4
Auto PWR ON (JP7)
JP7
Front
Panel
(JP11)
Power
6 3
COM 2 COM 1
COM 1: RS232/RS422/RS485
Chapter 5
COM 1 (RS232/422/485) /COM 2 (RS232/422/485) /COM 3 (RS232 only)
1 2 3 4 5
6 7 8 9
RS232
COM 4 (Serial) Port
This DB-9 serial port can be configured as an RS232 serial port or as an 8-bit DIO connector
via jumper settings. Refer to "COM 4/DIO Select" in Chapter 4 for its respective configuration.
8-bit Digital IO
The 8-bit Digital I/O connector provides monitoring and control functions to the connected
external devices. You can use the HW utility provided in the Manual and Driver CD to set the
DIO pins to be either input or output.
Pins
1
2
3
4
5
6
7
8
9
1 2 3 4 5
1 2 3 4 5
6 7 8 9
6 7 8 9
RS485
RS422
Full Duplex
COM 4 Function
RS232 DIO
DCD DIO_0
RX DIO_1
TX DIO_2
DTR DIO_3
GND GND
DSR
DIO_4
RTS
DIO_5
CTS DIO_6
RI DIO_7
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